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The brain and the nervous system

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Question 16

A teacher investigated the reaction times of five students using a digital reflex-testing device.

The device screen displayed a green dot. As soon as the green dot changed to red, each student had to press a trigger button as quickly as possible.

Their reaction times are shown in the table below:

StudentReaction time in milliseconds
1195
2260
3180
4205
5220

Which of the following is the median reaction time for these students?

180 milliseconds180\text{ milliseconds}180 milliseconds

195 milliseconds195\text{ milliseconds}195 milliseconds

205 milliseconds205\text{ milliseconds}205 milliseconds

220 milliseconds220\text{ milliseconds}220 milliseconds

The brain and the nervous system Questions

  1. GCSE
  2. /Biology
  3. /The brain and the nervous system